The new commercials will show Crow at home, playing around with her guitar and Dell's home-entertainment products. At one point, she watches her new video on a Dell plasma TV and flips through on-screen menus using the media center remote control.

Dell screened about 40 celebrities before choosing Crow, "in large part for being real and accessible," Farello said.

Aside from her music fame, Crow is also known as the girlfriend of pro-cycling champion Lance Armstrong. Hewlett-Packard Co., Dell's chief rival, recently presented a special-edition Lance Armstrong notebook computer.